Extracting rows from a text file based on numerical values of a column


 
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# 1  
Old 10-25-2011
Extracting rows from a text file based on numerical values of a column

I have a text file where the second column is a list of numbers going from small to large. I want to extract the rows where the second column is smaller than or equal to 0.0001.

My input:


Code:
rs10082730 9e-08 12 46002702
rs2544081 1e-07 12 46015487
rs1425136 1e-06 7 35396742
rs2712590 1e-05 12 46009521
rs2712591 0.0001 12 46009971
rs2712593 0.0002 12 4601042
rs2544083 0.0004 12 46012648

so that my output looks like this:
Code:
rs10082730 9e-08 12 46002702
rs2544081 1e-07 12 46015487
rs1425136 1e-06 7 35396742
rs2712590 1e-05 12 46009521
rs2712591 0.0001 12 46009971

How do I go about doing this? Thanks!
Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!

Last edited by vgersh99; 10-25-2011 at 02:10 PM.. Reason: once
# 2  
Old 10-25-2011
Code:
nawk '$2 <= 0.0001' myFile

 
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